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A continuum-field model of visual cortex stimulus-driven behaviour: emergent oscillations and coherence fields

Silvio P. Sabatini, Fabio Solari, Luca Secchi
2004 Neurocomputing  
A detailed analysis of the resulting oscillatory behaviour of the model evidences its capability of generating stimulus-induced spatio-temporal coherence ÿelds, similar to the ones experimentally observed  ...  in the mammalian visual cortex.  ...  Bisio and L. Ra o for their contributions to the accomplishment of this work. The work was partially supported by the University of Genoa within  ... 
doi:10.1016/j.neucom.2003.10.016 fatcat:obcr7yfcwnajjledbns7kls2te

Learning processing in the basal ganglia: A mosaic of broken mirrors

Claudio Da Cunha, Evellyn Claudia Wietzikoski, Patrícia Dombrowski, Mariza Bortolanza, Lucélia Mendes Santos, Suelen Lucio Boschen, Edmar Miyoshi
2009 Behavioural Brain Research  
In the present review we propose a model to explain the role of the basal ganglia in sensorimotor and cognitive functions based on a growing body of behavioural, anatomical, physiological, and neurochemical  ...  This model proposes that the body and its surrounding environment are represented in the striatum in a fragmented and repeated way, like a mosaic consisting of the fragmented images of broken mirrors.  ...  This work was supported by grants of Institutos do Milenio (CNPq/MCT), Pronex Paraná, and Fundaç ão Araucária, and FAPESP.  ... 
doi:10.1016/j.bbr.2008.10.001 pmid:18977393 fatcat:tmfvagny2vgcpi36hes6hrkufq

Cortical travelling waves: mechanisms and computational principles

Lyle Muller, Frédéric Chavane, John Reynolds, Terrence J. Sejnowski
2018 Nature Reviews Neuroscience  
features between visual cortex areas V1 and V4 (REF. 10).  ...  Indeed, experimental evidence suggests that oscillation synchrony modulates the effective connectivity of populations in the cortex 7,8 , shapes plasticity between neurons 9 and drives processing of stimulus  ...  Pao, A. Destexhe, Y Frégnac and C. F. Stevens for helpful discussions and J. Ogawa for helpful discussions and help with illustrations.  ... 
doi:10.1038/nrn.2018.20 pmid:29563572 pmcid:PMC5933075 fatcat:jvncynx5kvfu5nkf5qwgq2dkjq

39th Annual European Brain and Behaviour Society Abstracts

2007 Neural Plasticity  
All approaches relating brain and behaviour were represented at the meeting, which aimed to further expand the wide spectrum of previous EBBS AGMs, and to bring together integrative, system, cognitive,  ...  Alessandro Treves (SISSA) was the head and inspiration of the Local Organizing committee, supported by P. Battaglini, L. Chelazzi, M. Diamond and G. Vallortigara.  ...  A recent series of studies has shown that a test of object-in-place paired-associate learning (PAL), as part of the Cambridge neurological test battery (CaNTaB), is very effective at predicting whether  ... 
doi:10.1155/2007/23250 fatcat:7xnzbdkh5bgqxfe5vemcbmoie4

Cortical state and attention

Kenneth D. Harris, Alexander Thiele
2011 Nature Reviews Neuroscience  
Both processes involve a modulation of low-frequency activity fluctuations and spiking correlation, and are mediated by common receptor systems.  ...  in the primate visual system.  ...  Attention reduces stimulus-driven gamma frequency oscillations and spike field coherence in V1. Neuron 66, 114-125 (2010). 22. Khayat, P. S., Niebergall, R. & Martinez-Trujillo, J. C.  ... 
doi:10.1038/nrn3084 pmid:21829219 pmcid:PMC3324821 fatcat:akkvksuwgzfxhkixur53heczq4

Are Absence Epilepsy and Nocturnal Frontal Lobe Epilepsy System Epilepsies of the Sleep/Wake System?

Péter Halász
2015 Behavioural Neurology  
Experimental and clinical reseach data were collected to create a coherent explanation of underlying pathomechanism in AE and NFLE.  ...  System epilepsy is an emerging concept interpreting major nonlesional epilepsies as epileptic dysfunctions of physiological systems.  ...  Conflict of Interests The author declares that there is no conflict of interests regarding the publication of this paper.  ... 
doi:10.1155/2015/231676 pmid:26175547 pmcid:PMC4484558 fatcat:y2iqefwoqbettmyp6rss3wtpwu

The role of tactile afference in shaping motor behaviour and implications for prosthetic innovation

Rochelle Ackerley, Anne Kavounoudias
2015 Neuropsychologia  
Acknowledgments We thank Max Ortiz-Catalan and Integrum AB (Mölndal, Sweden) for providing illustrations of osseointegration.  ...  R.A. is funded by a MoRE Region Västra Götaland grant from the EU FP7-People-COFUND programme and A.K. is supported by an Agence Nationale de la Recherche grant (# ANR12-JSH2-0005-01).  ...  A tactile stimulus may drive behaviour, for example, contact with a sharp object makes you move your hand away.  ... 
doi:10.1016/j.neuropsychologia.2015.06.024 pmid:26102191 fatcat:fdlilz3j5faibdyfbirxhmodie

SIMULATED ELECTROCORTICAL ACTIVITY AT MICROSCOPIC, MESOSCOPIC AND GLOBAL SCALES

J. J. WRIGHT, C. J. RENNIE, G. J. LEES, P. A. ROBINSON, P. D. BOURKE, C. L. CHAPMAN, E. GORDON, D. L. ROWE
2004 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering  
We show that mutually consistent explanations and simulation of experimental data can be achieved for cortical gamma activity, synchronous oscillation, and the main features of the EEG power spectrum including  ...  The dynamic properties exhibited in the simulations, Hebbian synaptic modification regulated by a limited set of innate "reward" mechanisms, and infomax principles, can be combined to yield an explanation  ...  Nicholas Hawthorn for technical assistance, and the University of Sydney, the University of Auckland, the Swinburne University, Melbourne, and the Mental Health Research Institute, Melbourne, for the use  ... 
doi:10.1142/s0218127404009569 fatcat:snt25bgw7rhixanxcffcrvutiq

Simulated Electrocortical Activity at Microscopic, Mesoscopic and Global Scales

J J Wright, C J Rennie, G J Lees, P A Robinson, P D Bourke, C L Chapman, E Gordon, D L Rowe
2003 Neuropsychopharmacology  
We show that mutually consistent explanations and simulation of experimental data can be achieved for cortical gamma activity, synchronous oscillation, and the main features of the EEG power spectrum including  ...  The dynamic properties exhibited in the simulations, Hebbian synaptic modification regulated by a limited set of innate "reward" mechanisms, and infomax principles, can be combined to yield an explanation  ...  Nicholas Hawthorn for technical assistance, and the University of Sydney, the University of Auckland, the Swinburne University, Melbourne, and the Mental Health Research Institute, Melbourne, for the use  ... 
doi:10.1038/sj.npp.1300138 pmid:12827148 fatcat:ptgshejb4ffathcs5oydwgsmze

Synchronisation of Neural Oscillations and Cross-modal Influences

Anna-Katharina R. Bauer, Stefan Debener, Anna C. Nobre
2020 Trends in Cognitive Sciences  
Recent human and nonhuman primate studies suggest that such cross-modal influences in sensory cortices are mediated by the synchronisation of ongoing neural oscillations.  ...  Prior research has shown that signals in one sensory modality can influence neural activity and behavioural performance associated with another sensory modality.  ...  Overall, the emergence of behavioural periodicities time-locked to a reset event is a prime indicator of the involvement of neural oscillations [21, 27, 38] .  ... 
doi:10.1016/j.tics.2020.03.003 pmid:32317142 pmcid:PMC7653674 fatcat:js6hgcc5lbfwfabem7jdrlzehe

A First Step Toward Cognitive Remediation of Voices: a Case Study

Jérôme Favrod, Pascal Vianin, Valentino Pomini, Fred W. Mast
2006 Cognitive Behaviour Therapy  
ACKNOWLEDGMENTS NOTE The authors of this commentary are employed by a government agency and as such this commentary is considered a work of the U.S. government and not subject to copyright within the  ...  ACKNOWLEDGMENT The preparation of this commentary was supported in part by NARSAD Grable Investigator Award to Sohee Park.  ...  This initially drew upon what was then thought to be the inhibitory nature of stimulus-driven, bottom-up visual processing with a lack of inhibition-releasing spontaneous activity.  ... 
doi:10.1080/16506070600802993 pmid:16952899 fatcat:wjh5h3ysbrgapnlcwyfb5zjnz4

Modelling non-invasive brain stimulation in cognitive neuroscience

Carlo Miniussi, Justin A. Harris, Manuela Ruzzoli
2013 Neuroscience and Biobehavioral Reviews  
It bypasses the correlative approaches of other imaging techniques, making it possible to establish a causal relationship between cognitive processes and the functioning of specific brain areas.  ...  We know that NIBS techniques have the potential to transiently influence behaviour by altering neuronal activity, which may have facilitatory or inhibitory behavioural effects, and these alterations can  ...  They stimulated the occipital cortex by spTMS, which was time-locked to the presentation of a visual stimulus, while the participants tried to detect the visual stimulus.  ... 
doi:10.1016/j.neubiorev.2013.06.014 pmid:23827785 fatcat:chzsstj3cjh53lko4v3drxojgq

Cortical Resonance Frequencies Emerge from Network Size and Connectivity

Caroline A. Lea-Carnall, Marcelo A. Montemurro, Nelson J. Trujillo-Barreto, Laura M. Parkes, Wael El-Deredy, Claus C. Hilgetag
2016 PLoS Computational Biology  
Using a network model of loosely-coupled Wilson-Cowan oscillators to simulate a patch of cortical sheet, we demonstrate that the size of the activated network is inversely related to its resonance frequency  ...  The model predicted that if an activated network within the visual cortex increased in size, the resonance frequency of the network would decrease.  ...  This was possible due to the precise nature of retinotopic mapping of the visual field onto the cortex [23] .  ... 
doi:10.1371/journal.pcbi.1004740 pmid:26914905 pmcid:PMC4767278 fatcat:shsgwr4mnbfopc2i62ypn4m4ku

Information: In the stimulus or in the context?

Giulio Tononi, Gerald M. Edelman
1997 Behavioral and Brain Sciences  
This coordination involves contextual field (CF) connections that link processors within and between cortical regions.  ...  The effects of CF connections are distinguished from those mediating receptive field (RF) input; it is shown how CFs can guide both learning and processing without becoming confused with the transmission  ...  Shortly after the first reports of oscillations in visual cortex , we replicated the results by slightly modifying our existing models of oscillations in olfactory cortex (Wilson & Bower 1988; to reflect  ... 
doi:10.1017/s0140525x97401607 fatcat:5qez4t5ir5drjfvxcpntdf5tmm

In search of common foundations for cortical computation

William A. Phillips, Wolf Singer
1997 Behavioral and Brain Sciences  
This coordination involves contextual field (CF) connections that link processors within and between cortical regions.  ...  The effects of CF connections are distinguished from those mediating receptive field (RF) input; it is shown how CFs can guide both learning and processing without becoming confused with the transmission  ...  Shortly after the first reports of oscillations in visual cortex , we replicated the results by slightly modifying our existing models of oscillations in olfactory cortex (Wilson & Bower 1988; to reflect  ... 
doi:10.1017/s0140525x9700160x fatcat:alvhhga45be6rjfiui3eurkwgi
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